[R] heatmap question

[Peter Scacheri]

I'm having trouble with the heatmap function in R.  When I try and 
heatmap something, my graphics window does not open.  Does anyone 
know if this is a glitch in the version of R that I'm using?  I've 
listed my version of R below, as well as a simple heatmap command. 
I'm running the program on a Mac, OS 10 v 10.3.9.  Any suggestions??

Thanks!
Peter



>  version
          _
platform powerpc-apple-darwin6.8
arch     powerpc
os       darwin6.8
system   powerpc, darwin6.8
status
major    2
minor    0.1
year     2004
month    11
day      15
language R
>  x<-matrix(rnorm(100),nr=10)
>  heatmap(x)
>